NO891392D0 - Fremgangsmaate for bestemmelse av slitasje paa en borkrone. - Google Patents

Fremgangsmaate for bestemmelse av slitasje paa en borkrone.

Info

Publication number
NO891392D0
NO891392D0 NO891392A NO891392A NO891392D0 NO 891392 D0 NO891392 D0 NO 891392D0 NO 891392 A NO891392 A NO 891392A NO 891392 A NO891392 A NO 891392A NO 891392 D0 NO891392 D0 NO 891392D0
Authority
NO
Norway
Prior art keywords
procedure
determining wear
drill crown
crown
drill
Prior art date
Application number
NO891392A
Other languages
English (en)
Other versions
NO171741B (no
NO891392L (no
NO171741C (no
Inventor
Stuart Jardine
Original Assignee
Forex Neptune Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Forex Neptune Sa filed Critical Forex Neptune Sa
Publication of NO891392D0 publication Critical patent/NO891392D0/no
Publication of NO891392L publication Critical patent/NO891392L/no
Publication of NO171741B publication Critical patent/NO171741B/no
Publication of NO171741C publication Critical patent/NO171741C/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00—Accessories for drilling tools
    • E21B12/02—Wear indicators
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G05B19/4065—Monitoring tool breakage, life or condition

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Drilling Tools (AREA)
NO891392A 1988-04-05 1989-04-03 Fremgangsmaate for bestemmelse av slitasje paa en borekrone NO171741C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8807889A GB2217012B (en) 1988-04-05 1988-04-05 Method of determining drill bit wear

Publications (4)

Publication Number Publication Date
NO891392D0 true NO891392D0 (no) 1989-04-03
NO891392L NO891392L (no) 1989-10-06
NO171741B NO171741B (no) 1993-01-18
NO171741C NO171741C (no) 1993-04-28

Family

ID=10634556

Family Applications (1)

Application Number Title Priority Date Filing Date
NO891392A NO171741C (no) 1988-04-05 1989-04-03 Fremgangsmaate for bestemmelse av slitasje paa en borekrone

Country Status (6)

Country Link
US (1) US4928521A (no)
EP (1) EP0336477B1 (no)
CA (1) CA1298394C (no)
DE (1) DE68900462D1 (no)
GB (1) GB2217012B (no)
NO (1) NO171741C (no)

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Also Published As

Publication number Publication date
GB2217012B (en) 1992-03-25
EP0336477B1 (en) 1991-11-27
NO171741B (no) 1993-01-18
DE68900462D1 (de) 1992-01-09
US4928521A (en) 1990-05-29
EP0336477A1 (en) 1989-10-11
GB8807889D0 (en) 1988-05-05
NO891392L (no) 1989-10-06
GB2217012A (en) 1989-10-18
NO171741C (no) 1993-04-28
CA1298394C (en) 1992-03-31

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